BUS1BAN Analysing Business Data - Individual Research Project

Questions

Part B: Descriptive Statistics

Q4. Investigating the relationship between mobile phone brands and student gender: 

a. Complete the following cross classification table of gender by mobile phone brand. [1.5 marks]

b. Derive a relative frequency cross classification table based on row totals (i.e., gender) using the table in Q4-a above. [1.5 marks]

c. Use an appropriate graph to display the information contained in the cross-classification table of row relative frequencies above. Decide whether there is a relationship between mobile phone brands and the gender. [1 mark]

d. Estimate the 95% confidence interval for the proportion of iPhone (Apple Inc.) users in your sample of 370 students. Briefly interpret your answer. [1.5 marks]